企业异质性、研发投入与经营绩效——基于PSM模型的分析

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1000-7695|36|19|145-151

ISSN: 1000-7695

Source: 科技管理研究, Vol.36, Iss.19, 2016-01, pp. : 145-151

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Abstract